Fabricated face for ventilators



Patented Aug. 7, 1934 UNITED STATES FABRICATED FACE FOR VENTILATORSWilliam Thomas Truax, Battle Creek, Mich., assignor to United StatesRegister 00., a corporation of Michigan Application May 18, 1932, SerialN0. 612,079

2 Claims.

This invention relates to the construction of what are sometimes termedfabricated faces for ventilators, registers, grilles or the like forwhatever purpose intended.

The object of this invention is the production of a ventilator frame ofspecial formation and disposition of parts thereof, and bars for thesame fashioned of particular and unique shape whereby it is believed thewhole may be most readily assembled and which are economically andwithout difiioulty manufactured in quantities.

In the accompanying drawing the individual structure of the parts ofthis invention are illustrated, together with the whole as assembled.Considering the drawing Fig. 1 represents a top view of one end of thisinvention showing all parts as connected together. Fig. 2 is an invertedor bottom view of the other end of this invention showing the form ofthe separable members comprising the frame, and the shape of theextended end portions thereof with the manner of arrangement of theframe members. Fig. 3 is a side view of one corner of Fig. 1 showing therelative sunken end extension of the frame member and the position ofthe secured top plate. Fig. 4 is a section taken on the broken line l4of Fig. 1 showing the peculiar bar ends and frame slot engagement. Fig.5 is a side view of the end portion of one of the bars fashioned inaccordance with this invention.

Throughout the drawing and description the same number is used to referto the same part.

What may be termed the frame of this invention is made up of separablemembers the end members being 1 and 2 and the side members 3 and 4. Eachmember has a flange spaced inwardly from the edge of the upper or faceportion. The end 1 has the flange 5, the side 3 has a flange 6, and side4 has a flange 7. The flanges carry crossed bars, of which the bars 8are the longer and the bars 9 the shorter.

Regarding the end member 1 as illustrative of all the frame members,there will be noted in Fig. 2 the extended and angular end extensions 10and 11 and these end portions are relatively sunken below the level ofthe top surface of the member, as shown in Fig. 3. Number 12 marks theangular extension of side member 3 in Fig. 2, and number 13 the like endof the side member 4. When the sunken end extensions are arranged asshown in Fig. 2 they form the corner of the frame, and when the top ofthe frame is observed, as shown in Fig. 1 square corner plates 14 and 15lie upon and conform to the shape of the sunken extensions and theplates are secured permanently by any number and disposition of spotwelds 16. The whole frame is then practically one piece of metal as theside and end members are welded together.

Bars of special formation are employed in this invention, and thepeculiar shape of the end portion of each bar is set out in Fig. 5. Eachbar has a rectangular notch 1'7 and an in-curved recess 18.

Usually, the outer edge portions of the end and side members are bentslightly downward, to relieve the fiat appearance of the frame, and asmarked 19 in Fig. 3. i

The four flanges of the end and side members of this invention areprovided with spaced slots, such as the slot 20 for the flange 21 of endmember 2 set out in Fig. 4.

As best shown in Fig. 4 each slot 20 is made with an inwardly andupwardly extending tongue 22 projecting from the bottom of the slot, andin the assembling of the parts of this invention, before the top platesand frame members are welded together finally, the ends of the bars areintroduced intothe slots in such manner that the notched part 17 engagesthe top of the slot, and the recess 18 takes in the tongue 22. It willbe observed from Figs. 4 and 5 that the notches 1'7 engaging the upperends of the slots and the recesses 18 engaging the inwardly and upwardlyinclined tongues 22 which extend from the lower ends of the slots,prevent the displacement of the bars either up or down or to the rightor left, after the whole is assembled. This assembling operation isquickly performed without any difficulty whatsoever, and the junction isfast and there is no movement between the end of the bar and the flangeor slot. When the top plates and composite corners of the frame are spotwelded, the whole is a unitary structure of which no part is movablewith respect to any other, and the result is of unusual strength,rigidity and permanance.

Having now described this invention, I claim 1. A fabricated face of thecharacter described, comprising separable end and side membersconstructed and arranged to form a frame, each of said members havingterminal extended portions whereby a corner of the frame is formed bythe proximity of said extended portions, the said terminal extendedportions of the said members being sunken below the upper surface of themember, and a top plate permanently secured upon the said sunkenextended portions of adjoining members to hold them together.

2. In a ventilator or like structure, a frame having parts provided withspaced slots each of said slots having formed therewith an inwardly andupwardly projecting tongue from the lower edge of the slots, and barsconstructed with notches and recesses at their ends, the notches of thebars engaging the tops of the said slots and the recesses of the barsengaging the tongues of the said slots, whereby said bars are heldagainst displacement endwise or vertically.

WILLIAM THOMAS TRUAX.

